1. (n.) The outside or superficial portions of a body; the surface.

2. (n.) The circumference of a circle, ellipse, or other figure.

alentours ambience ambit border borderlands bound boundaries boundary bounds bourns brim circle circuit circumambiencies circumference circumjacencies circumscription circumstances compass confines context coordinates cortex covering crust edge edges entourage envelope environing circumstances environment environs epidermis exterior external facade face facet fringe fringes front gestalt habitat integument limitations limits lineaments marches margin metes metes and bounds milieu neighborhood outer face outer layer outer side outer skin outline outlines outposts outside outskirts pale parameters perimeter precincts purlieus rim rind shell situation skin skirts suburbs superficies superstratum surface surroundings top total environment verge verges vicinage vicinity